含氮的

The rate of nitrogen transformation in straw of Indica was higher than what of Japonica s.

相关分析表明，上三叶的SPAD值与叶的含氮率、吸。

Synthesis , Structure and Biological Activities of Pyrethroids with Nitrogen Containing Five Membered Heterocyclic Ketone Moieties

含氮五元杂环酮的拟除虫菊酯的合成，结构和生物活性

Lamellarins are a group of polycyclic pyrrole alkaloids that were isolated from the marine mollusc.

片螺素及其衍生物是从海洋软体动物分离的，具有显著生理活性和潜在药用价值的含氮稠杂环系列化合物。

The static adsorption and desorption of pvc-pyridine containing nitrogen for β-naphthol were studied. The resin had a good adsorption and desorption.

以含氮聚氯乙烯－吡啶树脂作吸附剂，研究它对β-萘酚的静态吸附和脱附情况，以及温度对树脂吸附性能的影响。

What is the percentage of nitrogen in air?

空气中所含的氮的比例是多少？

Urea is one of important fundamental fertilizers, it is a kind of solid nitrogenous fertilizer with much higher nitrogen content.

尿素是重要的基础肥料之一，是一种含氮量最高的固体氮肥。

Of or involving excess nitrogenous waste products in the urine (usually due to kidney insufficiency).

属于或包含在尿中的过多的含氮废物。

Nitrates and nitrites, exiting widely in human environment, are the most popular nitrogenous substance.

硝酸盐和亚硝酸盐广泛存在于人类的环境中，是自然界最普遍的含氮物。

Four new types of pyrimidine derivatives introduced directly by nitrogen-containing benzoheterocycles were designed and synthesized.

设计并合成了四种苯并含氮杂环取代的嘧啶类新化合物，它们的结构经 MS，IR和1 H NMR分析得到确

Quinoline is a representative compound of NHAs, which are ubiquitous environmental compounds.

论文选取一类常见的难降解有机物-含氮杂环化合物中的代表物质喹啉作为研究对象。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。